Answer:
No.
Step-by-step explanation:
2:1 and 19:10 are not equivalent.
Simply, because if you divide 9 by any number with the 10, it is not going to stay as a whole number. For example, 19 divided by 2 equals 9.5. 19 divided by 5 equals 3.8. So, no they are not equivalent.
Answer:
the correct ones are the 1st, 3rd and 4th
the range is (0:+infinity)
and the second statemend is false because 2²=4, but 2³=8, and 8=4=4 not 2
Answer:
-18
Step-by-step explanation:
Because if it increased it would be -6 not -18.
I need more information pls